>you are absolutely right, rich404, i observed the same changes in >c2g's >rendering pattern with the version changes in GEGL and GIMP, via GUI >or CLI. >now, this is very unfortunate. the c2g algorithm is to my >understanding truly >unique and very unusual and special, as it adjust pixel contrasts in >an 'organic >or neurological or physiological' way, like the original author stated >that he >was influenced by neuro-physiological evidence. >i feel this precious piece of code would deserve to be properly >maintained >within GIMP and GEGL, or be made publicly available, perhaps ported to >Python3. >i am not aware of any other (photo) image processing algorithm that >'intelligent' to combine data-driven(!) contrast and color information >from a >pixel neighbourhood across three channels for the purpose of reducing >RGB to one >layer. i am truly desperate for getting a new c2g version to work >with the >appropriate set of adjustable run parameters. what about a python3 >port ? >i still have a few linux boxes with gimp 2.8 running but i don't see >that as a >good way out of this problem, perhaps as a temporary solution only...
FWIW - You would have to ask the developers (Maybe you already have?) The closest I can get is the gmic_gimp plugin and the black-and-white filter but.... It is not consistent. A darker image requires slightly different setting for contrast and gamma than a lighter image and if you do not know what a Gimp 2.8 c2g looks like, then it is a matter of judgement. screenshot examples have the Gimp 2.8 c2g as an inset. The only advantage with gmic_gimp is 1. Your can save settings to recall them at a later date. 2. It is scriptable. best of luck with this one. Attachments: * https://www.gimpusers.com/system/attachments/1238/original/01-c2g.jpg * https://www.gimpusers.com/system/attachments/1239/original/02-c2g.jpg -- rich404 (via www.gimpusers.com/forums) _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
